Putting files in Jlist
 

ListFile class takes care of writing the files to Jlist


Basically there is a Jlist in my GUI and I want it to display the files stored in my user folder.

But for some reason it doesnt work the Jlist say that there is Null file.



[code = java]
package milestonemyworkspace;
import java.util.*;
import java.io.*;
import javax.swing.JOptionPane;
import java.lang.reflect.Array;
/**
* Handles the account details and login access.
*
* @author Abimar Skrubel
* @version 1.0
*/
public class User
{
private String name; //Username
private String password; //The Special Picture
private boolean access;

public User()
{
}
/**
* Sets the username
*/
public void setName(String name)
{
this.name = name;
}
/**
* Sets the password
*/
public void setPassword(String password)
{
this.password = password;
}
/**
* Gets the username
*/
public String getName()
{
return name;
}
/**
* Gets the password
*/
public String getPassword()
{
return password;
}

/*
* Saves user information to a text file
*/
public void saveUser()
{
File nameDir = new File("H:/SDI/MileStoneMyWorkSpace/MileStoneMyWorkSpace/users/" + name);
nameDir.mkdir(); //creates directory
File fileo = new File("H:/SDI/MileStoneMyWorkSpace/MileStoneMyWorkSpace/users/" + name + ".dat");
try
{
DataOutputStream ou = new DataOutputStream(new FileOutputStream(fileo));
ou.writeBytes(name + " , " + password);
ou.close();
}
catch (Exception e)
{
System.out.println(e.toString());
}
}
/**
* What is called after getting username and password for your account right
*/
public void login()
{

}
/**
* Reads the users account Information from the text file and matches it to user input to see if it is correct
*/
public void loadUser()
{
BufferedReader reader = null;
try{
reader = new BufferedReader(
new FileReader("H:\\SDI\\MileStoneMyWorkSpace\\MileStoneMyWorkSpace\\users\\" + name + ".dat"));
System.out.println("Results...");
String line;
line = reader.readLine();
while(line != null) {
System.out.println(line);
if(line.equals(name + " , " + password))
{
System.out.println("Right u aree ");
access = true;
}
else
{
System.out.println("WRONGGG");
access = false;
}
line = reader.readLine();
}
System.out.println();
}
catch(FileNotFoundException e){
System.out.println("Unable to find the file " + name + ".dat" );
}
catch(IOException e) {
System.out.println("Error found reading the file: " + name + ".dat" );
}
finally{
if(reader != null) {
//Catch any exception but nothing can be done about it.
try{
reader.close();
}
catch(IOException e) {
System.out.println("Error on closing: " + name + ".dat");
}
}
}
}
/**
* Gets user access
* If user input it's correct password and username it has access
* @return boolean
*/
public boolean getAccess()
{
return access;
}
}




package milestonemyworkspace;
import java.util.*;
import java.io.*;
/**
* Lists files in fileList
*
* @author Abimar Skrubel
* @version 1.0
*/
public class ListFiles
{
private ArrayList files;
private User user;
public ListFiles()
{
files = new ArrayList();
User user = new User();
}
//Write files to array list object
public void writeFiles()
{
user.getName();

try{

File fileo = new File(
"H:/SDI/MileStoneMyWorkSpace/MileStoneMyWorkSpace/users/" + user.getName() +
"/fileList.dat");

DataOutputStream ou = new DataOutputStream(new FileOutputStream(fileo));
ou.writeBytes(user.getName());
ou.close();
}
catch (Exception e)
{
System.out.println(e.toString());
}
}

//read files to put in J list
public void readFiles()
{
BufferedReader reader = null;
try{
reader = new BufferedReader(
new FileReader("H:\\SDI\\MileStoneMyWorkSpace\\MileStoneMyWorkSpace\\users\\" + user.getName() + "fileList.dat"));
System.out.println("Results...");
String line;
line = reader.readLine();
while(line != null) {
System.out.println(line);
line = reader.readLine();
}
System.out.println();
}
catch(FileNotFoundException e){
System.out.println("Unable to find the file " + user.getName() + ".dat" );
}
catch(IOException e) {
System.out.println("Error found reading the file: " + user.getName() + ".dat" );
}
finally{
if(reader != null) {
//Catch any exception but nothing can be done about it.
try{
reader.close();
}
catch(IOException e) {
System.out.println("Error on closing: " + user.getName() + ".dat");
}
}
}
}

public Object getFiles()
{
return files;
}
}



package milestonemyworkspace;
import java.util.*;
import java.io.*;
import javax.swing.JOptionPane;
import java.lang.reflect.Array;
/**
* Handles the account details and login access.
*
* @author Abimar Skrubel
* @version 1.0
*/
public class User
{
private String name; //Username
private String password; //The Special Picture
private boolean access;

public User()
{
}
/**
* Sets the username
*/
public void setName(String name)
{
this.name = name;
}
/**
* Sets the password
*/
public void setPassword(String password)
{
this.password = password;
}
/**
* Gets the username
*/
public String getName()
{
return name;
}
/**
* Gets the password
*/
public String getPassword()
{
return password;
}

/*
* Saves user information to a text file
*/
public void saveUser()
{
File nameDir = new File("H:/SDI/MileStoneMyWorkSpace/MileStoneMyWorkSpace/users/" + name);
nameDir.mkdir(); //creates directory
File fileo = new File("H:/SDI/MileStoneMyWorkSpace/MileStoneMyWorkSpace/users/" + name + ".dat");
try
{
DataOutputStream ou = new DataOutputStream(new FileOutputStream(fileo));
ou.writeBytes(name + " , " + password);
ou.close();
}
catch (Exception e)
{
System.out.println(e.toString());
}
}
/**
* What is called after getting username and password for your account right
*/
public void login()
{

}
/**
* Reads the users account Information from the text file and matches it to user input to see if it is correct
*/
public void loadUser()
{
BufferedReader reader = null;
try{
reader = new BufferedReader(
new FileReader("H:\\SDI\\MileStoneMyWorkSpace\\MileStoneMyWorkSpace\\users\\" + name + ".dat"));
System.out.println("Results...");
String line;
line = reader.readLine();
while(line != null) {
System.out.println(line);
if(line.equals(name + " , " + password))
{
System.out.println("Right u aree ");
access = true;
}
else
{
System.out.println("WRONGGG");
access = false;
}
line = reader.readLine();
}
System.out.println();
}
catch(FileNotFoundException e){
System.out.println("Unable to find the file " + name + ".dat" );
}
catch(IOException e) {
System.out.println("Error found reading the file: " + name + ".dat" );
}
finally{
if(reader != null) {
//Catch any exception but nothing can be done about it.
try{
reader.close();
}
catch(IOException e) {
System.out.println("Error on closing: " + name + ".dat");
}
}
}
}
/**
* Gets user access
* If user input it's correct password and username it has access
* @return boolean
*/
public boolean getAccess()
{
return access;
}
}
[/code]